internal ProjectedCoordinateSystem(
HorizontalDatum horizontalDatum,
AxisInfo[] axisInfoArray,
GeographicCoordinateSystem geographicCoordSystem,
LinearUnit linearUnit,
Projection projection,
string remarks, string authority, string authorityCode, string name, string alias, string abbreviation)
: base(remarks, authority, authorityCode, name, alias, abbreviation)
{
if (axisInfoArray == null)
{
throw new ArgumentNullException("axisInfoArray");
}
if (geographicCoordSystem == null)
{
throw new ArgumentNullException("geographicCoordSystem");
}
if (projection == null)
{
throw new ArgumentNullException("projection");
}
if (linearUnit == null)
{
throw new ArgumentNullException("linearUnit");
}
_horizontalDatum = horizontalDatum;
_axisInfoArray = axisInfoArray;
_geographicCoordSystem = geographicCoordSystem;
_projection = projection;
_linearUnit = linearUnit;
}
internal ProjectedCoordinateSystem(
HorizontalDatum horizontalDatum,
AxisInfo[] axisInfoArray,
GeographicCoordinateSystem geographicCoordSystem,
LinearUnit linearUnit,
Projection projection)
: this(horizontalDatum, axisInfoArray, geographicCoordSystem, linearUnit, projection, String.Empty, String.Empty, String.Empty, String.Empty, String.Empty, String.Empty)
{
}
private static void WriteLinearUnit(LinearUnit linearUnit, bool esri, IndentedTextWriter writer)
{
writer.WriteLine("UNIT[");
writer.Indent = writer.Indent + 1;
writer.WriteLine(String.Format("\"{0}\",{1}", linearUnit.Name, linearUnit.MetersPerUnit.ToString(_nhi)));
//writer.WriteLine(String.Format("AUTHORITY[\"{0}\",\"{1}\"]", linearUnit.Authority, linearUnit.AuthorityCode));
WriteAuthority(linearUnit, esri, writer);
writer.Indent = writer.Indent - 1;
writer.WriteLine("]");
}
private static Ellipsoid ReadEllipsoid(string [] parameters, LinearUnit unit)
{
string ellps = ParameterValue(parameters, "+ellps");
if (ellps != null)
{
double majorAxis, minorAxis, invFlattening;
string name = ProjDB.SpheroidByP4(ellps, out majorAxis, out minorAxis, out invFlattening);
if (name == String.Empty)
{
throw new NotSupportedException(String.Format("Ellipsoid {0} is not implemented.", ellps));
}
string a = ParameterValue(parameters, "+a");
string b = ParameterValue(parameters, "+b");
if (a != null)
{
majorAxis = double.Parse(a);
}
if (b != null)
{
minorAxis = double.Parse(b);
}
if (a != null && b != null)
{
if (majorAxis == minorAxis)
{
invFlattening = 0;
}
else
{
invFlattening = minorAxis / (majorAxis - minorAxis);
}
}
return(new Ellipsoid(majorAxis, minorAxis, invFlattening, true,
unit, String.Empty, string.Empty, string.Empty,
name, string.Empty, string.Empty));
}
else
{
string a = ParameterValue(parameters, "+a");
string b = ParameterValue(parameters, "+b");
if (a != null && b != null)
{
return(new Ellipsoid(
double.Parse(a, _nhi),
double.Parse(b, _nhi),
0, false, unit));
}
}
return(null);
}
internal VerticalCoordinateSystem(
string name,
VerticalDatum verticaldatum,
string remarks, string authority, string authorityCode, string alias, string abbreviation)
: base(remarks, authority, authorityCode, name, alias, abbreviation)
{
if (verticaldatum == null)
{
throw new ArgumentNullException("verticaldatum");
}
_verticaldatum = verticaldatum;
_units = LinearUnit.Meters;
_axisinfo = new AxisInfo[1] {
AxisInfo.Altitude
};
}
public VerticalCoordinateSystem(string name,
VerticalDatum verticaldatum,
AxisInfo axisinfo,
LinearUnit linearUnit,
string remarks, string authority, string authorityCode, string alias, string abbreviation)
: base(remarks, authority, authorityCode, name, alias, abbreviation)
{
if (verticaldatum == null)
{
throw new ArgumentNullException("verticaldatum");
}
_verticaldatum = verticaldatum;
_axisinfo = new AxisInfo[1] {
axisinfo
};
_units = linearUnit;
}
internal VerticalCoordinateSystem(string name, VerticalDatum verticaldatum, AxisInfo axisinfo, LinearUnit units)
: base(name, String.Empty, String.Empty, String.Empty, String.Empty, String.Empty)
{
if (verticaldatum == null)
{
throw new ArgumentNullException("verticaldatum");
}
if (units == null)
{
throw new ArgumentNullException("units");
}
_name = name;
_verticaldatum = verticaldatum;
_axisinfo = new AxisInfo[1] {
axisinfo
};
_units = units;
}
internal Ellipsoid(double semiMajorAxis, double semiMinorAxis, double inverseFlattening, bool isIvfDefinitive, LinearUnit linearUnit,
string remarks, string authority, string authorityCode, string name, string alias, string abbreviation)
:
base(remarks, authority, authorityCode, name, alias, abbreviation)
{
if (linearUnit == null)
{
throw new ArgumentNullException("linearUnit");
}
_name = name;
_linearUnit = linearUnit;
_semiMajorAxis = semiMajorAxis;
_isIvfDefinitive = isIvfDefinitive;
if (_isIvfDefinitive)
{
_inverseFlattening = inverseFlattening;
if (_inverseFlattening == 0.0)
{
_semiMinorAxis = semiMajorAxis;
}
else
{
_semiMinorAxis = (1.0 - (1.0 / _inverseFlattening)) * semiMajorAxis;
}
}
else
{
_semiMinorAxis = semiMinorAxis;
if (_semiMajorAxis - _semiMinorAxis != 0.0)
{
_inverseFlattening = _semiMajorAxis / (_semiMajorAxis - _semiMinorAxis);
}
else
{
_inverseFlattening = 0.0;
}
}
}
private static GeographicCoordinateSystem ReadGeographicCoordinateSystem(string[] parameters)
{
//+proj=longlat +ellps=intl +pm=ferro +towgs84=145,-187,103,0,0,0,0 +no_defs
WGS84ConversionInfo wgs84 = ReadWGS84ConversionInfo(ParameterValue(parameters, "+towgs84"));
LinearUnit unit = ReadUnit(parameters) as LinearUnit;
Ellipsoid ellipsoid = ReadEllipsoid(parameters, unit);
HorizontalDatum datum = new HorizontalDatum(
"Unknown",
DatumType.IHD_Classic,
ellipsoid,
wgs84);
GeographicCoordinateSystem geogrCoordSystem =
new GeographicCoordinateSystem(
"Unknown",
new AngularUnit(Math.PI / 180.0, String.Empty, String.Empty, String.Empty, "degree", String.Empty, String.Empty),
datum,
ReadPrimeMeridian(parameters),
new AxisInfo("Geodetic latitude", AxisOrientation.North),
new AxisInfo("Geodetic longitude", AxisOrientation.East));
return(geogrCoordSystem);
}
internal Ellipsoid(double semiMajorAxis, double semiMinorAxis, double inverseFlattening, bool isIvfDefinitive, LinearUnit linearUnit)
:
this(semiMajorAxis, semiMinorAxis, inverseFlattening, isIvfDefinitive, linearUnit,
String.Empty, String.Empty, String.Empty, String.Empty, String.Empty, String.Empty)
{
}
private static Unit ReadUnit(WktStreamTokenizer tokenizer, bool includeAuthority)
{
//UNIT["degree",0.01745329251994433,AUTHORITY["EPSG","9102"]]
Unit unit = null;
tokenizer.ReadToken("[");
string unitName = tokenizer.ReadDoubleQuotedWord();
tokenizer.ReadToken(",");
tokenizer.NextToken();
double unitsPerUnit = tokenizer.GetNumericValue();
string authority = String.Empty;
string authorityCode = String.Empty;
if (includeAuthority)
{
tokenizer.ReadToken(",");
tokenizer.ReadAuthority(ref authority, ref authorityCode);
}
tokenizer.ReadToken("]");
switch (unitName.ToUpper())
{
// take into account the different spellings of the word meter/metre.
case "METER":
case "METRE":
case "KILOMETRE":
case "KILOMETER":
unit = new LinearUnit(unitsPerUnit, String.Empty, authority, authorityCode, unitName, String.Empty, String.Empty);
break;
case "DEGREE":
case "RADIAN":
case "GRAD":
unit = new AngularUnit(unitsPerUnit, String.Empty, authority, authorityCode, unitName, String.Empty, String.Empty);
break;
//case "CLARKE'S LINK":
//case "GOLD COAST FOOT":
//case "US SURVEY FOOT":
//case "CLARKE'S FOOT":
//case "FOOT":
//case "LINK":
//case "INDIAN YARD":
//case "GERMAN LEGAL METRE":
//case "BRITISH CHAIN (SEARS 1922)":
//case "BRITISH FOOT (SEARS 1922)":
//case "BRITISH CHAIN (SEARS 1922 TRUNCATED)":
//case "BRITISH CHAIN (BENOIT 1922 TRUNCATED)":
// unit = new LinearUnit(unitsPerUnit, String.Empty, authority, authorityCode, unitName, String.Empty, String.Empty);
// break;
default:
string u = unitName.ToUpper();
if (u.Contains("YARD") || u.Contains("CHAIN") ||
u.Contains("FOOT") || u.Contains("LINK") ||
u.Contains("METRE") || u.Contains("METER") ||
u.Contains("KILOMETER") || u.Contains("KILOMETRE"))
{
unit = new LinearUnit(unitsPerUnit, String.Empty, authority, authorityCode, unitName, String.Empty, String.Empty);
}
else
{
throw new NotImplementedException(String.Format("{0} is not recognized a unit of measure.", unitName));
}
break;
}
return(unit);
}